A cylinder at left has balls stacked near its bottom with an arrow leading to a cylinder at right with balls evenly spaced throughout the cylinder. Which change of state is shown in the model? condensation evaporation sublimation deposition

Explanation:

Your description corresponds to the picture attached.

In that model, the spheres represent atoms or molecules (is the same) of a substace. You can call them particles.

The particles tightly packed inside the cylinder of the left represent a substance in solid state whose particles are in a fix position and cannot move freely.

The particles randomly distributed throughout the cylinder on the right model a substance is gas state, where the particles occupy the whole space, moving freely.

Thus, the image depicts the change of a substance from solid state to gaseus phase. Such change is defined as sublimation.

Therefor, the answer is the third choice of your list: sublimation.

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